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rgb tri

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This commit is contained in:
k 2024-12-19 17:29:25 -05:00
parent d79f49535e
commit 8cb5f8c773
2 changed files with 49 additions and 18 deletions
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13
src/main.cpp
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@ -39,17 +39,21 @@ int main(void) {
glGenBuffers(1, &VBO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(sqr_vertices), sqr_vertices,
glBufferData(GL_ARRAY_BUFFER, sizeof(tri_rgb_vertices), tri_rgb_vertices,
GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void *)0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void *)0);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void *)(3 * sizeof(float)));
glEnableVertexAttribArray(1);
/*
glGenBuffers(1, &EBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(sqr_indices), sqr_indices, GL_STATIC_DRAW);
*/
unsigned int shaderProgram =
shaderProgramCMPL(basicVertexShaderSource, basicFragmentShaderSource);
shaderProgramCMPL(rgbVertexShaderSource, rgbFragmentShaderSource);
glUseProgram(shaderProgram);
while (!glfwWindowShouldClose(window)) {
@ -61,7 +65,8 @@ int main(void) {
glUseProgram(shaderProgram);
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
//glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
glDrawArrays(GL_TRIANGLES, 0, 3);
glfwSwapBuffers(window);
glfwPollEvents();